'08 YZ450F sprocket size?

DC5039

Hey guys,
what is the standard number of teeth on the front/rear sprockets on the YZ450F 2008? I think the service manual says 13/49 (or 49/13, i know the bigger one is the back). Also, what size do you run?

08YZ450Derek

Well, I bought one and the design is much different from the stock one. I was having problems with my countershaft sticking. But that was all due from my collar missing. I still think the design is wrong for the bike, I went with a Renthal rear 50T and a TAG metals 13T front. It works awesome for me now.
If you don't like the bog off the bottom end, just use a 50T instead of the 49T stock rear. It helps.

Wes Woodin

Hey guys, what is the standard number of teeth on the front/rear sprockets on the YZ450F 2008? I think the service manual says 13/49 (or 49/13, i know the bigger one is the back). Also, what size do you run?

stock on a 08 is 13/48. I went up two teeth to a 50, and love it. I do shift more but the guys can't keep up with me in the corners.

08YZ450Derek

TTultimate

thanks guys!!!!! I see what you mean. For whatever reason on the Renthal applications list on the sprocket package they only say to 07 for the yz450F but they do say to 08 for the YZF450. I mentioned this to the parts guy but he told me it would be the same and work. It is definitely notched on both side so I have ordered a moose instead.